Yes, you can do this by utilizing SORACOM Gate service(network overlay service), or a relay server like SSH tunneling server, to access the device using our Air SIM. Without using SORACOM Gate, you cannot access the devices from the outside network as we assign a private IP address to your SIM, and the device accesses outside network through NAT.
SORACOM Gate service enables you to remotely access devices in a secure way. Devices can also communicate with each other through virtually created Gate network. For details on how to set this up, please refer to SORACOM Gate service details page below.
How to use a relay server
This is not a direct connection to the device, but you can hop a relay server by utilizing SSH tunneling or other tunneling method to access the device. Please see below blog post for details: